Simplify[] problem

*To*: mathgroup at yoda.ncsa.uiuc.edu*Subject*: Simplify[] problem*From*: "Keith R. Slavin" <keith at videovax.tv.tek.com>*Date*: Tue, 12 Feb 91 10:18:42 PST

When asked to Simplify[] this expression: (E^((k + -I*w)*x)*(k + m + -I*w))/ (2*(-E^((k + -I*w)*(-1/2 + x))/2 + E^((k + -I*w)*(1/2 + x))/2)) Mathematica does NOTHING with it (not even cancelling out the 2's in the denominator)! The terms with x should cancel altogether, and indeed they do if I replace (k - I w) with a single variable, or remove the 'm' from the expression, or several other minor changes... This is causing me real problems in a situation where I cannot 'special case' for a general-purpose algorithm. Is there some sort of expression conditioning I can do before calling simplify, or do I have to wait for 'fixed in version 2.0'? Regards, Keith Slavin, Tektronix Inc, Beaverton, OR (503) 627 4907